G8HN-1C4T-RJ Automotive Relay (3-Pack) 12VDC 20A 5-Pin SPDT Micro ISO Power Relay (15.5mm x 23mm Base) Replacement for Honda and Acura Cars/SUVs - Compatible with Fuel Pump, A/C, Horn

Automotive-Specific Power Relay ReplacementThe G8HN-1C4T-RJ is a 5-pin SPDT relay designed for 12V DC automotive electrical systems. This model follows the Micro ISO industrial standard, which is the primary relay footprint used in Honda and Acura vehicles for over two decades.Critical Fitment Information: Dimensions MatterTo prevent ordering the incorrect part, please note the physical dimensions of this relay. The base measures 15.5mm x 23.0mm (0.61 x 0.91 inches). While many automotive relays look similar, internal terminal spacing and housing size vary between "Mini," "Micro," and "Ultra-Micro" standards. This G8HN model is a Micro ISO type and is not compatible with vehicles requiring smaller-format relays often found in certain ATVs or motorcycles.Reliable Switching for Vital SystemsFuel System: Ensures consistent power delivery to the fuel pump during ignition.Climate Control: Triggers the A/C compressor clutch for cabin cooling.Engine Protection: Activates radiator fans to maintain thermal regulation.Maintenance SolutionReplacing a worn relay is a standard maintenance task. When a relay's internal silver alloy contacts wear down, you may hear a "clicking" sound without the associated component (like the horn or fan) turning on. This 3-pack provides replacement units for multiple circuits, allowing you to restore factory-spec electrical performance to your vehicle's power distribution box.

• [TECHNICAL SPECS & SIZE] 12VDC 20A 5-Pin SPDT power relay. Features a standard Micro ISO footprint with a base measuring approximately 15.5mm x 23.0mm (0.61" x 0.91"). Replaces OEM #39794-SDA-A03, 39794-SDA-A05, and G8HN-1C4T-RJ.
• [VEHICLE FITMENT GUIDE] Specifically engineered for automotive power distribution centers. Compatible with 2003-2022 Honda Civic, 2003-2022 Honda Accord, 2007-2022 Honda CR-V, and 2003-2020 Acura MDX. Note: Not a universal relay; please measure your original part before ordering.
• [VOC-OPTIMIZED DESIGN] To ensure proper installation, this relay adheres to strict Micro ISO housing specifications. The sealed casing prevents internal contact corrosion from engine bay heat and vibration. Ideal for restoring functionality to A/C compressors, fuel pumps, and cooling fans that exhibit intermittent operation.
• [APPLICATION & FAULT CODES] Direct replacement for relays controlling high-current circuits. Suitable for fixing issues where the A/C blows warm air or the engine fails to start due to fuel pump power loss. Compatible with diagnostic troubleshooting for codes P0230 and P0231.
• [PACKAGE & DIMENSION VERIFICATION] Includes three (3) G8HN-1C4T-RJ relays. Designed for automotive fuse blocks. Important: If using for power sports (ATVs/Four-wheelers), verify that your original relay matches the Micro ISO (15.5x23mm) size, as many off-road vehicles require different, smaller relay standards.